6
Display
Description
Troubleshooting
0
Loop is healthy
If experiencing problems with detection, reassess DIP switch settings or call
HME* for guidance with settings.
1
Loop is in good condition
2
Loop is in moderate condition
3
Loop is approaching a critical
condition
Severe weather may exacerbate problem. Loop replacement is
recommended. Call HME* for guidance
4
Loop is close to failure
Severe weather may make the loop fail. Loop replacement is necessary.
5
Loop is healthy, but connection
from the loop to the VDB103/
VDB103R is bad
Check electrical connections to loop and to VDB103/VDB103R as well as
any cable splices. Call HME* if problem persists.
6
Loop is in good condition, but
connection from the loop to the
VDB103/VDB103R is bad
7
Loop is in moderate condition, but
connection from the loop to the
VDB103/VDB103R is bad
8
Loop is approaching a critical
condition, but connection from the
loop to the VDB103/VDB103R is
bad
Check electrical connections to loop and to VDB103/VDB103R as well
as any cable splices. Loop replacement is recommended. Call HME* for
guidance.
9
Loop is close to failure, but
connection from the loop to the
VDB103/VDB103R is bad
Check electrical connections to loop and to VDB103/VDB103R as well as
any cable splices. Loop replacement is necessary.
C
Loop Shorted
Disconnect loop from lead-in cable outside the building and re check. If still
shorted, the cable is bad. If open (code “
d
”), loop replacement is indicated.
d
Loop disconnected from VDB103/
VDB103R
Check electrical connections at VDB103/VDB103R, loop, and any splices in
the cable.
L
Loop inductance is outside of
operable range
Schedule loop replacement.
U
Loop inductance is outside of
range, and connection from the
loop to the VDB103/VDB103R is
bad
Check all electrical connections and re test. Loop replacement may be
necessary.
F
VDB103/VDB103R has failed
Call HME* for replacement VDB103/VDB103R.
b
VDB103/VDB103R booting
Normal to appear for a few seconds after reset. Call HME* for replacement
VDB103/VDB103R if code persists.
*1-800-848-4468
Figure 4. Loop Status Indication Table
SELF DIAGNOSTICS
If an abnormal condition with the loop or detector occurs, the LED display will show a number or letter (see below). Follow the
recommendations appropriate for the code that is displayed.
